| 1 | 291829 | 其他含酚基羧酸等及其衍生物 | Carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excluding salicylic acid and o-Acetylsalicylic acid, and their salts and esters) | 8 |
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| 2 | 293399 | 未列名仅含有氮杂原子的杂环化合物 | Heterocyclic compounds with nitrogen hetero-atom[s] only (excluding those containing an unfused pyrazole, imidazole, pyridine or triazine ring, whether or not hydrogenated, a quinoline or isoquinoline ring-system, not further fused, whether or not hydrogenated, a pyrimidine ring, whether or not hydrogenated, or piperazine ring in the structure, and lactams, alprazolam "INN", camazepam "INN", chlordiazepoxide "INN", clonazepam "INN", clorazepate, delorazepam "INN", diazepam "INN", estazolam "INN", ethyl loflazepate "INN", fludiazepam "INN", flunitrazepam "INN", flurazepam "INN", halazepam "INN", lorazepam "INN", lormetazepam "INN", mazindol "INN", medazepam "INN", midazolam "INN", nimetazepam "INN", nitrazepam "INN", nordazepam "INN", oxazepam "INN", pinazepam "INN", prazepam "INN", pyrovalerone "INN", temazepam "INN", tetrazepam "INN" and triazolam "INN", and salts thereof) | 6 |
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| 3 | 291639 | 其他芳香一元羧酸及其酸酐等及其衍生物 | Aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their halogenated, sulphonated, nitrated or nitrosated derivatives (excluding benzoic acid, its salts and esters, benzoyl peroxide, benzoyl chloride, phenylacetic acid and its salts, and inorganic or organic compounds of mercury whether or not chemically defined) | 3 |
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